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3 years ago

328,000 mm + 137 m = ______________m?

Physics

1 answer:

svp [43]3 years ago

5 0

Answer:

465m.

Explanation:

Convert all units to meters. So,

328 + 137 = 465m.

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In a RC-circuit, with the capacitor initially uncharged, when we connect the battery to the circuit the charge on the capacitor starts to increase following the law:
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Using this law, we can answer all the three questions of the problem.

1) Using $R=39.1 \Omega$ and $C= 65.7 mF=65.7\cdot 10^{-3}F$ , the time constant of the circuit is:
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2) To find the charge on the capacitor at time $t=1.95 \tau$ , we must find before the maximum charge on the capacitor, which is
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And then, the charge at time $t=1.95 \tau$ is equal to
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3) After a long time (let's say much larger than the time constant of the circuit), the capacitor will be fully charged, this means its charge will be $Q_0 = 0.59 C$ . We can see this also from the previous formule, by using $t=\infty$ :
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Answer:

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